George is telling Lennie that he has to put the mouse down and then go to sleep so they can go to the farm in the morning.
The old man is basically telling George and Lennie that the boss was waiting for them last night and that they will be staying a the bunk house with the other guys that stay here and work.
Carlson who hates old man candy's dog made candy say yes to take the dog and put it out of its pain and then took the dog out side and shot it in the back of the head.
Lennie saw a light in the barn and went to it and he saw a black guy and the black guy's name was crooks and he said why you in here for your not suppost to be in here this is my room not yours go way and then they started to talk to each other and get along.
Lennie is sitting and saying why you have to die little pup you ain't so little as mice and then Curly's wife comes and starts to talk to Lennie and telling him to touch her hair and then he breaks her neck from holding to tight
Lennie killed curl'y wife and then he ran off to where George told him to go when ever he got into really big trouble and the George found him and told him what they were going to do when they leave the farm and the George shot Lennie in the back of the head.